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Trip Simulator

A stroke simulator, stroke technology, applied in the direction of brakes, springs/shock absorbers, transportation and packaging, etc., can solve the problems of increasing the number of components, increasing costs, and large-scale

Active Publication Date: 2022-07-29
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned stroke simulator, three elastic members are arranged in the cylinder body, so the number of parts increases, and there are concerns about a decrease in assemblability and an increase in cost.
In addition, if a metal spring is used as the elastic member, there are concerns about an increase in the weight of the stroke simulator and an increase in size in the axial direction.

Method used

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  • Trip Simulator
  • Trip Simulator
  • Trip Simulator

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach ＞

[0022] like figure 1 As shown, the vehicle brake device BF includes a master cylinder 1 , a stroke simulator 2 , a first control valve 82 , a second control valve 83 , a servo pressure generator 4 , an actuator 5 , wheel cylinders 541 to 544 , and a brake ECU 6 and various sensors 71-76.

[0023] The master cylinder 1 is a part that supplies brake fluid to the actuator 5 according to the operation amount of the brake pedal (corresponding to the “brake operating member”) 10, and includes a master cylinder 11, a head cylinder 12, an input piston 13, a first master cylinder Piston 14 , and second main piston 15 . The brake pedal 10 may be any brake operating mechanism that can be operated by the driver.

[0024] The master cylinder 11 is a bottomed, substantially cylindrical casing that is closed at the front and opened at the rear. An inner wall portion 111 protruding inward in a flange shape is provided at the rear of the inner peripheral side of the master cylinder 11 . A ...

no. 2 approach ＞

[0067] The stroke simulator 2A of the second embodiment differs from the first embodiment in the structure of the retainer. Therefore, based on the description of the first embodiment and the drawings, only the different parts will be described. like Figure 5 As shown, the protruding portion 262 of the retainer 26 of the second embodiment includes a high-rigidity portion 262 a whose diameter gradually decreases toward the piston 22 . In other words, the protruding portion 262 protrudes from the inner peripheral portion (the hole 261a forming portion) of the plate-shaped portion 261 to the one end side so that the diameter becomes gradually smaller toward the one end. The outer peripheral surface of the high-rigidity portion 262a is tapered and has relatively high rigidity. Rigidity is the difficulty of deformation relative to the applied force, even the force required to deform per unit amount of deformation. The surface of the base portion 251 on the retainer 26 side (it ...

no. 3 approach ＞

[0069] The stroke simulator 2B of the third embodiment differs from the first embodiment in the configuration of the main piston. Therefore, based on the description of the first embodiment and the drawings, only the different parts will be described. like Image 6 As shown, the piston 22 of the third embodiment is a bottomed cylindrical member having a bottom surface on one end side and an opening on the other end side. Specifically, the piston 22 has a main body portion 22a, a cylindrical contact portion 22b protruding from the outer peripheral portion of the main body portion 22a to the other end side (the lid member 23 side), and a protruding portion protruding from one end surface of the main body portion 22a 22c.

[0070] The main-body part 22a corresponds to the main-body part 221 of 1st Embodiment, and has the large diameter part 22a1 provided with the sealing member Z1, and the small diameter part 22a2 smaller in diameter than the large diameter part 22a1. The smal...

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PUM

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Abstract

The present invention relates to a stroke simulator comprising: a piston (22) arranged in a cylinder hole (211); a cover member (23) closing an opening on the other end side of the cylinder hole (211); ) and the cover member (23) between the elastic members (24) and (25), the elastic members (24) and (25) are formed by a first elastic member ( 24), and a second elastic member (25) arranged on the cover member (23) side of the cylinder hole (211), the second elastic member (25) is configured to have a series arrangement with the first elastic member (24) The base portion (251) of the base portion (251), and the convex portion (252) protruding from the end face of the base portion (251) on the side of the piston (22), when the piston (22) moves axially to the side of the cover member (23), the convex portion (252) After the (252) abuts the piston (22) and is compressed and deformed, the base (251) is compressed and deformed.

Description

technical field [0001] The present invention relates to a trip simulator. Background technique [0002] The vehicle brake device is provided with a stroke simulator that applies a reaction force to the brake operating member. For example, Japanese Patent Application Laid-Open No. 2012-206711 describes a stroke simulator including first to third elastic members having different elastic constants in a cylinder. In this stroke simulator, the linear reaction force characteristic of the first elastic member at the initial stage of input (initial braking operation) and the third elastic member at the later stage of input are combined using the nonlinear reaction force characteristic of the third elastic member at the mid-input stage. The linear reaction force characteristics of the two elastic members are connected, thereby alleviating the sense of incongruity during braking operation. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2012-206711 [0004] However, in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/122B60T8/17B60T11/20F16F1/36F16F3/10
CPCB60T11/20B60T8/409B60T7/042B60T13/662B60T13/146B60T13/686B60T2270/10B60T2270/82
Inventor 李红丁
Owner ADVICS CO LTD